Effective use of graphs is almost guaranteed to bring you extra points in the exam. There are a few things to help you use them well.1) Use relevant graphs. There is no point, for example, drawing a Demand and Supply graph in a macro-economics essay. Graphs take time so make sure when you draw one it helps you advance your argument.2) Make the graph big enough (at least 1/3 of the A4 page) for clarity.3) Label everything clearly.4) If you have more than one graphs, label the variables with different letters. For example, if you have a graph on the short run aggregate demand and the long run aggregate demand, make sure you don’t label each with simply AD – use SRAD and LRAD or AD1 and AD2, so that when you refer to them in your essay it is clear which graph you are referring to.